Transcript
ALKON 18 R 24 R - 24 C 28 R - 28 C - 35 R - 35 C
00332496 - 1st edition - 04/2008
USER’S OPERATING INSTRUCTIONS English
Contents CONTENTS 1 2 3 4 5 6
Symbols used in this guide ....................................................................................................................................................... 2 Correct use of the appliance ..................................................................................................................................................... 2 Water treatment ......................................................................................................................................................................... 2 Information to be handed over to the user ................................................................................................................................ 3 Safety warnings ......................................................................................................................................................................... 3 Operating instructions ............................................................................................................................................................... 4 6.1 Control panel ...................................................................................................................................................................... 4 6.2 Check list before commissioning the boiler ....................................................................................................................... 6 6.3 Boiler operation .................................................................................................................................................................. 6 DHW production (“R” model combined with an external storage tank) ........................................................................... 6 DHW production (“C” version) ............................................................................................................................................ 6 Energizing the “pre-heat” function ..................................................................................................................................... 6 CH Mode ............................................................................................................................................................................ 6 Shutting down the boiler .................................................................................................................................................... 7 6.4 Frost protection mode ......................................................................................................................................................... 7 6.5 Eliminating the faults .......................................................................................................................................................... 7
1 - SYMBOLS USED IN THIS GUIDE When reading this guide particular care has to be given to the parts marked with the followings symbols:
DANGER! Indicates serious danger for your personal safety and for your life
WARNING! Indicates a potentially dangerous situation for the product and the environment
NOTE! Suggestions for the user
2 - CORRECT USE OF THE APPLIANCE The ALKON appliance has been designed utilizing today’s heating technology and in compliance with the current safety regulations. However, following an improper use, dangers could arise for the safety and life of the user or of other people, or damage could be caused to the appliance or other objects. The appliance is designed to be used in pumped hot water central heating systems and for domestic hot water production. Any other use of this appliance will be considered improper. UNICAL declines any responsibility for any damages or injuries caused by an improper use; in this case the risk is completely at the user’s responsibility. In order to use the appliance according to the scopes it was designed for it is essential to carefully follow the instructions indicated in this guide.
3 - WATER TREATMENT • • • • •
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The hardness of the mains water supply conditions the frequency with which the heat exchanger is cleaned. In hard water areas where the main water can exceed 15°f total hardness, a scale reducing device is recommended. The choice of this device has to be made taking into consideration the water’s characteristics. In order to improve the resistance to lime scale, it is recommended to adjust the domestic hot water temperature as near as possible to the one you really require. The use of a modulating room thermostat reduces the dangers of lime scale formation. We recommend you to check the state of cleanliness of the domestic hot water heat exchanger at the end of the first year and subsequently, on the basis of the amount of lime scale found, this period can be extended to two years.
General information 4 - INFORMATION TO BE HANDED OVER TO THE USER (BY THE INSTALLER) The user has to be instructed on the use and operation of his heating system, in particular: • Hand over these instructions to the end user, together with any other literature regarding this appliance, placed inside the envelope contained in the packaging. The user has to keep these documents in a safe place in order to always have them at hand for future reference. • Inform the user on the importance of air vents and of the flue outlet system, stressing the fact that is absolutely forbidden to make any alterations to the boiler. • Inform the user how to check the system’s water pressure as well as informing him how to restore the correct pressure. • Explain the function of time and temperature controls, thermostats, heating controls and radiators, to ensure the greatest possible fuel economy. • Remind the user that, in order to comply to the standards in force, it is necessary to inspect and service the boiler according to the current codes of practice and according to the schedule indicated in this manual by the manufacturer. • If the appliance is sold or transferred to another owner or if the present user moves home and leaves the appliance installed, ensure yourself that the manual always follows the appliance so that it can be consulted by the new owner and/or installer. Failure to follow the instructions indicated in this guide, which is supplied with the boiler, could cause injury to persons, animals or damage to property. The manufacturer shall not be held liable for any such injury and/or damage.
5 - SAFETY WARNINGS WARNING! The installation, adjustment, and servicing of this appliance must be carried out by a competent person and installed in accordance with the current standards and regulations. Failure to correctly install this appliance could cause injury to persons, animals or damage to property. The manufacturer shall not be held liable for any such injury and/or damage.
DANGER! NEVER try to service or repair the appliance yourself. All types of servicing or repairs must be carried out by a professionally qualified person, authorized by UNICAL; UNICAL recommends drawing up a service contract. Bad or irregular servicing could compromise the safe operation of the appliance, and could cause injury to persons, animals or damage to property for which UNICAL shall not be held liable.
Alterations to parts connected to the appliance Do not carry out any alterations to the following parts: - the boiler - to the gas, air, water feed pipes and electrical current - to the flue pipe, safety relief valve and its drainage pipe - to the constructive components which influence the appliance’s safe operation
Smell of gas If you smell gas follow these safety indications: - Do not touch any electrical switches - Do no smoke - Do not use the telephone - Close the On/Off gas service cock - Open all windows and doors where the gas leakage has occurred - Inform the gas society or a specialized company
Explosive and easily inflammable substances Do not use or leave explosive or easily inflammable material (as for example: petrol, paint, paper) in the room where the appliance has been installed. 3
User’s operating instructions 6 - OPERATING INSTRUCTIONS 6.1 - CONTROL PANEL
A
MIN
B
MAX
MIN
MAX
SERVICE:
CD E
F GH
I
A = Domestic hot water temperature control B = Summer/winter selector + Central heating temperature control knob C = Power On indicator led(Green) D = Central heating mode indicator led
E = Burner On indicator led(Green) F = “RIRA” (pre-heating) mode indicator led G = Reset /chimneysweeper mode key H = Lock-out led indicator I = System temperature control/pressure gauge
Summer/winter selector + Central heating temperature control knob
Domestic hot water temperature control NOTE! For the Alkon R model this mode is enabled only if the boiler is connected to an external storage tank.
By turning this knob it is possible to choose the following operating modes: - Summer (only DHW production) - Winter (DHW production and central heating temperature control)
With this knob it is possible to adjust the domestic hot water draw-off temperature:
When the switch is in the (Summer) position the central heating mode is excluded. However, the frost protection mode remains enabled. MIN
With the knob in the position indicated in the figure, the boiler is in the “Winter” mode, and controls the central heating hot water flow temperature. The temperature can be adjusted between 30°C minimum and 80°C maximum.
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MAX
By turning the knob within the range indicated in the figure, it is possible to adjust the domestic hot water temperature. The temperature can be adjusted between 35°C minimum and 65°C maximum (Alkon C). The temperature can be adjusted between 25°C minimum and 60°C maximum (Alkon R combined with external DSP storage tank).
User’s operating instructions Power On indicator led This led will illuminate when the boiler is connected to the electricity supply
Central heating mode indicator led
Reset key with “Chimneysweeper” mode WARNING! This operation can be carried out exclusively by personnel from authorized After Sales Service centres. The user is NOT authorized to activate the following described mode.
This led will illuminate when there is a request for central heating. If simultaneously there is a request for domestic hot water production, the led will switch off.
Burner On indicator led When this led is illuminated it indicates that the burner is functioning correctly, both in central heating request mode and in domestic hot water production mode.
“RIRA” pre-heating function If this function is enabled it will ensure an immediate supply of domestic hot water. - This function is enabled if the led (green) is illuminated. - This function is disenabled if the led (green) is switched off. To enable/disenable the RIRA function press the appropriate key.
Lock-out indicator led When this led is illuminated it indicates that the burner’s safety cut-off device has shut-down the boiler.
Reset key The function of this key is to reset correct boiler operation after the cut-off device has shutdown the boiler (red led indicator illuminated)
If the cut-off device operates more than 3 times, causing boiler shutdown, do not try to reset the boiler yourself. Contact your nearest Unical authorized After Sales Service Centre.
By pressing this key the “Chimneysweeper” mode is activated. This means that the boiler will be forced to operate at the maximum (or minimum) output so as to permit the adjustment operations and the combustion analysis.
By pressing this key for at least 3 seconds the boiler will operate at the maximum output (led D = illuminated and flashing and led E = constantly illuminated).
By briefly pressing this key again (<3 secs.), the boiler will operate at the minimum output (both the leds D and E flashing).
The “chimneysweeper” mode will remain enabled for 15 minutes. To disenable the “CHIMNEYSWEEPER” mode before this set time has elapsed, press the reset/chimneysweeper key “G” for at least 3 seconds.
System temperature control/pressure gauge This displays: - on the upper scale the central heating hot water flow temperature is indicated. - On the lower scale the water pressure in the central heating system is indicated. - If the pressure is lower then 0,7 bar, then it will be necessary to restore the correct pressure by operating the filling valve when the system is cold and the boiler not operating.
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User’s operating instructions 6.2 - CHECK LIST BEFORE COMMISSIONING THE BOILER Before commissioning the appliance it is recommended to check the following points: - Check that the On-Off gas valve, positioned upstream of the boiler, is in the On position. - Check that any On-Off valves fitted on the flow and return pipes for servicing purposes are in the On position. - Check that any On-Off valves fitted on the cold water inlet for servicing purposes are in the On position. - Check that the pressure relief valve drainage pipe is connected to the sewage system. - Check that the boiler is connected to the electrical supply; the green indicator led ( ) on the control panel must be illuminated. - Check the heating system pressure, indicated by the pressure gauge. For correct operation the pressure should be between 0,8 and 1 bar (with the pump not running). If the pressure falls below 0,7 bar restore the correct pressure by regulating the filling valve when the system is cold and the boiler not operating (refer to paragraph 6.5).
Domestic hot water production (Alkon “C” model) Position the domestic hot water control knob (A) to the desired DHW temperature: - with the knob turned completely to the left = 35°C - with the knob turned completely to the right = 65°C
Note: By adjusting the DHW temperature at a temperature very close to the one actually used will avoid mixing hot water with cold water, thus resulting in fuel savings and a significant reduction of lime scale formation. When a tap or shower is turned on the appliance will provide domestic hot water at the desired temperature
Enabling and disenabling the “RIRA” pre-heating function (only on the Alkon C model)
This function can be enabled/disenabled by pressing this key.
6.3 - BOILER OPERATION Domestic hot water production (Alkon R + external storage tank DSP 120) Green led On > RIRA function enabled For domestic hot water production, on the R models, it is necessary for the boiler to be connected to an external storage tank, as for example the DSP. Green led Off > RIRA function disenabled. Position the domestic hot water control knob (A) to the desired DHW temperature: - with the knob turned completely to the left = 25°C - with the knob turned completely to the right = 60°C
If this function is enabled it will guarantee an immediate supply of domestic hot water.
Central heating mode Note: By adjusting the DHW temperature at a temperature very close to the one actually used will avoid mixing hot water with cold water, thus resulting in fuel savings and a significant reduction in lime scale formation.
In this case, the boiler will fire until the water contained in the tank has reached the desired temperature, set via the knob “A” . When a tap or shower is turned on the appliance will provide domestic hot water at the desired temperature.
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The boiler will operate in the CH mode when the knob (B) is positioned within the range indicated in the figure. - with the knob in the position 1, the minimum temperature corresponds to > 35°C. - with the knob in the position 2, the maximum temperature corresponds to >80°C.
User’s operating instructions SHUTTING DOWN THE BOILER
Cause: Insufficient water pressure in the central heating system.
To disenable the CH mode Turn the knob (B) completely to the left to disenable the CH mode. The DHW mode however remains enabled (SUMMER mode).
Elimination of the fault: Restore the correct pressure value by regulating the boiler’s filling valve (for correct boiler operation the pressure should be between 0,8 and 1 bar). When the correct pressure value has been reached the led will switch off automatically and normal boiler operation will be restored.
Complete boiler shut down DANGER! If the system has to be frequently restored please contact an authorized Unical After Sales Service Centre.
If the boiler is completely shut down, the CH and DHW mode will be completely disenabled. To completely shut down the boiler, switch off the electrical supply to the boiler (the green “Power On” led is not illuminated).
Filling cock
If the boiler will remain shut down for a longer period, turn the On/Off gas cock into the Off position and, if fitted, turn the cold water supply cock into the Off position. Open
6.4 - FROST PROTECTION MODE
Close
The boiler is fitted with a frost protection system which will operate automatically when the system temperature falls below 6°C: the burner is automatically fired and the pump is energized until the system’s water temperature has risen to 16°C. If the temperature detected by the CH sensor falls below 2°C, burner operation is automatically stopped until the temperature has risen to 5°C.
WARNING! This feature will operate only if the electrical supply to the boiler is On (green Power On led illuminated). However, further frost protection can be incorporated by using specific frost protection products, suitable for multi-metal systems. Do not use anti-frost products for motor vehicles because they could seriously damage the water gaskets. If, for any reason, there is no gas or electrical supply, the above described frost protection mode will not be active.
6.5 - ELIMINATING THE FAULTS If the boiler goes into lock-out the user can reset the boiler only in the following cases:
Lock-out led illuminated and flashing
Burner lock-out led constantly illuminated Cause: IThe burner’s lock-out device has intervened due to: - no gas supply (in this case check that the gas service cock is open - presence of air in the piping (if it is a new system or after a long inactivity of the boiler). Elimination of the fault: Check that the gas service cock is in the On position and that the air present in the piping has been vented. Press the reset key to restore correct boiler operation.
If the cut-off device operates repeatedly (a maximum of 3 times), causing boiler shutdown, do not try to relight the boiler yourself. Contact your nearest Unical authorized After Sales Service Centre. WARNING: If the boiler goes into lock-out and/or the leds continue to flash repeatedly or remain illuminated do not try to reset the boiler yourself. Contact your nearest Unical authorized Afters Sales Service Centre.
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AG S.P.A. 46033 casteldario - mantova - italia - tel. 0376/57001 (r.a.) - fax 0376/660556 www.unical.ag -
[email protected] The Unical declines every responsibility for the possible inaccuracies if owed to errors of transcript or press. Also reserves the right to bring those changes that it will hold necessary to it own products or profits, without jeopardizing its essential characteristics.
